68028532077 has 16 divisors (see below), whose sum is σ = 100817587008. Its totient is φ = 40451498880.

The previous prime is 68028532067. The next prime is 68028532097. The reversal of 68028532077 is 77023582086.

It is not a de Polignac number, because 68028532077 - 2⁸ = 68028531821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68028532037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19446088 + ... + 19449585.

It is an arithmetic number, because the mean of its divisors is an integer number (6301099188).

Almost surely, 2^68028532077 is an apocalyptic number.

It is an amenable number.

68028532077 is a deficient number, since it is larger than the sum of its proper divisors (32789054931).

68028532077 is a wasteful number, since it uses less digits than its factorization.

68028532077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38895740.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 68028532077 in words is "sixty-eight billion, twenty-eight million, five hundred thirty-two thousand, seventy-seven".